Population

  Sri Lanka's population structure shows a somewhat lower male to female ratio of 0.94 to 1, with a median male age of 32.43 years old and a median female age of 35.66 years old. The highest concentration of adults under 75 years old is in the 18 and 19 year-old age groups, while the lowest concentration is in the 74 and 73 year-old age groups.